Home / 20,796,427.40-31,152,650.70-11,810,481.80

Finding the Fourth Proportional to 20,796,427.40, 31,152,650.70 and 11,810,481.80

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Solution

The fourth proportional to 20,796,427.40, 31,152,650.70 and 11,810,481.80 is: 17,691,875.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796,427.40 : 31,152,650.70 = 11,810,481.80 : x
  2. Step 2: Convert to fraction form
    20,796,427.40/31,152,650.70 = 11,810,481.80/x
  3. Step 3: Cross multiply
    20,796,427.40x = 31,152,650.70 × 11,810,481.80
  4. Step 4: Simplify right side
    20,796,427.40x = 367,927,814,114,107.25
  5. Step 5: Solve for x
    x = 367,927,814,114,107.25/20,796,427.40
  6. Step 6: Final answer
    x = 17,691,875.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.